Door structure



' C. H. HOFFSTETTER May l2, 1931.

DOOR STRUCTURE Filed May 2l, 1930 A TTORNEYS.

50 The door frame is provided with sockets Patented YMay 12, 1931 UNITED STA CARL H. Horrsrn'r'iiin, or ERIE, PENNsYLvAi'IimAssiGNoR 'ro'k oDiN- smovn 'MANUf FAGTURING coivirANY, oF ERIE, riinnsirmriii\iiii, A conPonATIoN or .ra1\r1\rs Y1.V

'VAN IA noon sTR'crIiRE Application mea may 2i, 1930. serial Noliifisi.

The present invention is designed to improve door structures, particularly as to the manner ofhinging the same. In many doors it is desirable to close the dooi` into the door 5 frame and conceal the hinge mechanism from the front lof the door. This is particularly desirable with relation to stove doors and doors of similar nature which are commonly provided with some finish that is more readily applied to an unbroken surface. In carrying outthe present invention, I provide a door, preferably of sheet metal of opposing plates; providing a cavity between the plates,`form openings in the edges of one of the plates, formk sockets in re ister therewith7 and accomplish the assem 1y of the pintles by eX- panding the pintles into place, the most ccnvenient manner ofaccomplishing this being to use a kresilient rod which may be contracted by flexing and expanded throughth'e openings into place, thus affording a very eiiicient and at the same time a very simple, convenient and cheap structure for the pur-l pose and one that may be readily yand 'enf tirely concealed from they front. Features and details of the invention will appear more vfully from the speciiication and claims.

A preferred embodiment of the invention is illustrated in the accompanying drawings as follows c n Fig. 1 shows a front view of a stove with the door in place thereon.` .e

Fig. 2 a section on the line .3 3 in Fig. 4:,

showing the hinge pintle rod in contracted Y position.

Fig. 3 is a similar section showing the hinge pintle rody in its final position.

Fig. 4 a section on the line 4 4 in Fig. 1.

1 marks the door frame, 2 the door opening, and 3 the door. The door is preferably formed with an Vouter plate 4, preferably Y convex in form and provided with asurrounding inturned flange 5. A'rear plate 6 of theL door is providedkwith 'out-,turned flanges 7 telescoping within the flanges 5 and l forming a cavity between the plates. A handle 9 is provided for the door andmeans for securing the plates together are also pro-y vided.

1.` 'Ina door structure,the combination of with thev opening in vthe-frame; a pintleand pintles insertable from the Vcavities 10 which extend. laterally into the frame ad- I" jacent to the lower edge of the opening. Openings 111 are provided in the flange 6 in. register withthev openings 10,. A pintle rod 12 'is' preferably'formed of resilient: wire and is assembled in place through the open-V ings 11 into the* sockets '10, as indicated-,in Fig: 3, prior to finally securing the rear plate 7 to the front plate, the front-platebeingpreferably provided with lips 13 which extend into sockets 14 in the rear .plateso thatthe two y plates rmay be .closed vbyv swingingr the rearfplate en theselips andthe plates are' `secured*together by bolts 15 whicheXtend through the plates into lthe handle 9,.;

f Itrwill be noted-that the entire front face of the door is relieved of all the hinge structure,.that thehinge plates are entirely concealed'bothv with the door Open and closed, and that it is securely locked in place through the resilience of the rod,v yet affords a means whereby the door may be very quickly assembled," or .disassembledy from" the` door frame. 1- v -WhatIfclaim asnew is z- Y Y a frame with pintle openings therein; a door in the frame having a pintle connection atoiie side of the door and an openingv inregister receiving cavity in the door at its opening; and pintles for the door, `one of which is insertable from the cavity into the opening.

2. Ina-door structure, the lcombination of a frame with opposing pintle openings therein a ldoor in the frame havingpintle` openings in 'register with the openings inthefframe and a pintle-receiving cavity at the openings.; finto the openings.. f i y3. yIn adoorstructure, thejcoinbination of a f frame with opposing pintle'openings therein;

a door in the frame havingpintle openingsin register.,v @withthev frame 4'openings and an eXpansible pintle insertable by extension' into the openings) '1 4. In a doorstructure, the combination of Y a frame with opposing pintle -openings therey in a door in the frame having pintle openings in register with the frame openings; and an expansible pintle insertable by extension into the openings, said door having a cavity in which the pintle is arranged.

5. In a door structure, the combination '.of a frame with opposing pintle openings therein; a door in the frame having pintle openings in register with the frame openings; and a pintle rod contractible by flexing and expansible into the openings by return flexing of lo the rod. 6. In a door structure, the combination of a frame with opposing pintle openings therein; a door in the frame having pintle openings in register with the frame openings; and a resilient pintle rod oontractible endwise by flexing and expansible through its resilience into the openings.

7. In a door structure, the combination of a frame with opposing pintle openings therein; a doorin the frame having pintle openings in register with the frame openings; and a resilient pintle rod contractible endwise by exing and expansible through its resilience into the 0penings,.said door having a cavity for receiving the rod.

V8. In a door structure; the combination of a front plate; a rear A plate spaced from the front plate and forming a cavity between the plates, said door structure having pintle openings at its edges; a door frame having opposingfsockets in register with the openings in the door; and a pintle rod arranged in the cavity between the plates and extending ,through the opening into the opposing socket.

3: y 9. In a door structure, the combination of a front plate; a rear plate spaced from the front plate and forming a cavity between the plates,4 said door structure having pintle openings at its edges; a door frame having opposing sockets in register with the openings 4in the door; and a lpintle rod arranged in the cavity between the plates and extending through the opening into the opposing socket, said rod beingy contractible to permit its insertion .into the cavity and expansible into the openin s.

10. n a door structure, the combination of a front plate; a 'rear' plateV spaced from the Vfront plate and forming a cavity between the plates, said door structure having pintle 'openings at its edges; a door frame having opposing sockets in register with the openings in the'door; and a pintle rod arranged in the cavity between the plates and extending` g through the opening int-o the opposing socket;

Y said rod zbeing contraetible through flexing and expansible by return flexing into the openings and sockets.

In testimony whereof I have hereunto set 00 my hand.

A n Y CARL H. HOFFSTETTER. 

